TheSeal25.4mmx25.4mmx70mmEPDMisagasketthatisoneofthecomponentsofwall-railmountswrapper.Itisusedtofillthespacebetweentwoormorematingsurfacesinordertopreventanyseepagefro morintoobjects.ItisaD-shapedsealmadeofadurablespongerubberEthylenePropyleneDieneMonomer(EPDM)compoundthatcomesfromthemanufacturingprocessofrubberextrusion. Highlyrecommendedforoutdoorapplicationsduetoitsproperties.Fromthepriorinstallation,cutthesealtoarequiredlengthwithscissorsoraknifeandtoensurethebondingsurfaceiscleanedproperlywitha50/50mixofdenaturedalcoholandwatersolutionforbetterbonding.